Nice work! took me till that photo of the 70 series and red dodge to realize who you were 
Builds 1974 HZJ40 Build
- Thread starter The Eradicator
- Start date
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Yes, Nice work Charlie!
This 3.70 factory ring/pinion has the solid collar built into the pinion shaft.
The thick .113" shim can be sanded with #60 to tweak in the exact desired thickness.....and I did that 4 times.
One thick and one thin. The adjusted total ended up being right near .122"
11 inch/pounds of smooth pinion pre-load.
Only the best......Marlin seal.
This 3.70 factory ring/pinion has the solid collar built into the pinion shaft.
The thick .113" shim can be sanded with #60 to tweak in the exact desired thickness.....and I did that 4 times.
One thick and one thin. The adjusted total ended up being right near .122"
11 inch/pounds of smooth pinion pre-load.
Only the best......Marlin seal.
The oem flange was wet sanded with #1500. It still had a pretty good groove where the stock seals would ride.....but the Marlin seal contacts a point about .200" lower on good virgin shaft.
DING and this will never loosen up.
Now to set the backlash and preloads.......
DING and this will never loosen up.
Now to set the backlash and preloads.......
A nice, solid 9 inch/pounds of carrier bearing preload using 3.7 gears......
Backlash is recorded on every other tooth.
Being these are front gears with manual hubs I set this one for .005" minimum.
It was an attempt to get the patterns closer to center.
This is with .044" pinion shim. Looks darn good. These are take-offs so patterns will not be the same as "new".
Coast is definitely on the toe end. Best possible pattern with minimum backlash.
Using an ohm meter from the 80's/90's I measured 3.9 ohms across the coil.
Backlash is recorded on every other tooth.
Being these are front gears with manual hubs I set this one for .005" minimum.
It was an attempt to get the patterns closer to center.
This is with .044" pinion shim. Looks darn good. These are take-offs so patterns will not be the same as "new".
Coast is definitely on the toe end. Best possible pattern with minimum backlash.
Using an ohm meter from the 80's/90's I measured 3.9 ohms across the coil.
RTV is a good sealer for the rubber grommet...it is a slick lubricator and makes pushing the grommet thru much easier.
//////////////////////////
12 volts is applied to the 2 wires.....
.....and turn the ring gear a few inches and the 3 locking pins are pushed into place.
Remove the 12 volt signal and the pins snap back into place(unlocked mode)
//////////////////////////
12 volts is applied to the 2 wires.....
.....and turn the ring gear a few inches and the 3 locking pins are pushed into place.
Remove the 12 volt signal and the pins snap back into place(unlocked mode)
Home stretch..............
Notes taken during the install.
I think I'll head to Autozone and get a can of that brake caliper paint. Steve Schaefer recently supplied me with a Landcruiser 3rd that he sprayed with the caliper paint and I like the durability and look of it. Better than Krylon I think.
Notes taken during the install.
I think I'll head to Autozone and get a can of that brake caliper paint. Steve Schaefer recently supplied me with a Landcruiser 3rd that he sprayed with the caliper paint and I like the durability and look of it. Better than Krylon I think.
New 9.5" Nitro 3.70 for the rear build with new bearings.
Charlie's rear 3rd is a semi-floater. No locker....and no cross-pin clearancing needed with skinny 3.70 gears.
Charlie's rear 3rd is a semi-floater. No locker....and no cross-pin clearancing needed with skinny 3.70 gears.
Great work as usual Ken. 
81 ft/lb and red loctite
The old carrier bearings had some pitting in the races....
This other carrier race was actually kind of chromey looking....meaning it was "well worn"
less pitting on the chromey race.
The new Koyo carrier bearings saw some Sleeve Lock on the extra clean journals.
The old carrier bearings had some pitting in the races....
This other carrier race was actually kind of chromey looking....meaning it was "well worn"
less pitting on the chromey race.
The new Koyo carrier bearings saw some Sleeve Lock on the extra clean journals.
lelandEOD
SILVER Star
Holy hell, it's freaky how similar our 1HZ installs are... down to the Toyota parts from Pick-n-Pull to complete the intermediate shafts on the FZJ80 steering box install...
Thanks for the tip on the Denso starter motor interchangeability bit too!
Bravo!
Thanks for the tip on the Denso starter motor interchangeability bit too!
Bravo!
- Thread starter
- #51
Yep. I've been watching your engine build thread for a while, but didn't realize what you had planned for it. The engine turned out super clean and I'm excited to see how the rest of your swap goes.
lelandEOD
SILVER Star
Hi Eradicator,
Diff #2 (rear) coming along nicely. Man, these bearings had some deep wear marks.
Toilet paper is very effective for removing oils from the races for close up photos.
outer pinion bearing and race. See the 3 indentations from the rollers?
easier to see in this close-up. Brinelling. These are history for sure.
This is the large inner pinion race. Not obvious with this digital picture but it has a very chromey appearance with much pitting. Deep wear. Funny thing is that the rollers look much better ....seems the races tell the real story.
Diff #2 (rear) coming along nicely. Man, these bearings had some deep wear marks.
Toilet paper is very effective for removing oils from the races for close up photos.
outer pinion bearing and race. See the 3 indentations from the rollers?
easier to see in this close-up. Brinelling. These are history for sure.
This is the large inner pinion race. Not obvious with this digital picture but it has a very chromey appearance with much pitting. Deep wear. Funny thing is that the rollers look much better ....seems the races tell the real story.
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New koyo races tapped in. 360 degree support of course.
Might as well start with the same 048 oem shim
I try to duplicate the same final preload that I plan to at the end.....close enough....11 or 12 inch/pounds.
This is with lots of gear oil on the bearings.
Might as well start with the same 048 oem shim
I try to duplicate the same final preload that I plan to at the end.....close enough....11 or 12 inch/pounds.
This is with lots of gear oil on the bearings.
I'm looking more at the "depth" of the pattern....from face to flank. The toe to heel location is where it will end up
and that can vary alot. It's usually not in the center.
I can see that this means shallow here.
Coast side verifies that it is shallow.
Comet tails can offer a refreshing insight.....and it's deep in the root....deep in root of pinion tooth means shallow in the ring tooth.
yep. I wonder what 052 will look like.....
and that can vary alot. It's usually not in the center.
I can see that this means shallow here.
Coast side verifies that it is shallow.
Comet tails can offer a refreshing insight.....and it's deep in the root....deep in root of pinion tooth means shallow in the ring tooth.
yep. I wonder what 052 will look like.....
039 plus 013 is 052. Micrometers to make sure I am getting exactly what I want.
Drive side....this could be exact depth or possibly a touch shallow.
Coast....this is saying a touch shallow.
comet tail is not harshly in the root. It is saying to go a little thicker on the shim.
I'll try adding .003"
Drive side....this could be exact depth or possibly a touch shallow.
Coast....this is saying a touch shallow.
comet tail is not harshly in the root. It is saying to go a little thicker on the shim.
I'll try adding .003"
This one is a slow responder......and that says good things about the way this gear was cut....really good things.
This is with 055 and this is "exact depth" but Charlie will want max strength and quietness so a final tweak will happen....
either 057 or 058 will be the final value.
Coast is saying I can go deeper....so maybe 058
The comet tail says that it's getting real close to the optimum value.
Comet says try 058.
This is with 055 and this is "exact depth" but Charlie will want max strength and quietness so a final tweak will happen....
either 057 or 058 will be the final value.
Coast is saying I can go deeper....so maybe 058
The comet tail says that it's getting real close to the optimum value.
Comet says try 058.
Drive side NIce
Coast ok
comet tail is almost to center and says to leave it alone.
yep
Now to put the solid collar in and Marlin seal and button it up.
Coast ok
comet tail is almost to center and says to leave it alone.
yep
Now to put the solid collar in and Marlin seal and button it up.
yippee! diff #2 done....except for a coat of black satin brake caliper high heat paint.
Only the best.....Marlin 27 spline seal.
Solid collar has been set and lots of anti-seize on the threads to minimize resistance.
A nice, smooth 10 inch/pounds of pinion preload. DING! and this end is done.
Caps torqued to 70+.....then dial in the backlash and carrier bearing preload.
Backlash is recorded on every other tooth. The minimum BL is etched on the ring (.007")
Only the best.....Marlin 27 spline seal.
Solid collar has been set and lots of anti-seize on the threads to minimize resistance.
A nice, smooth 10 inch/pounds of pinion preload. DING! and this end is done.
Caps torqued to 70+.....then dial in the backlash and carrier bearing preload.
Backlash is recorded on every other tooth. The minimum BL is etched on the ring (.007")
Notes of the rear build. No locker and new Nitro 370 gears, new bearings and solid collar....and Marlin seal.
